Jimmy Wärting jimmywarting

This is for when you are building a library and csp are in the way and require you to use trustedTypes html

var toSafeNode=(h,x=new XMLHttpRequest)=>(x.send(x.open('GET',URL.createObjectURL(new Blob([h])),0)),x.responseXML)

var fragment = toSafeNode('<div>hej</div>')

// https://github.com/nodejs/undici/issues/2750#issuecomment-2707472553

// undici global symbol are lazy loaded, so we need to trigger it first
try { fetch('data:;base64,') } catch (e) { }

// Get the global agent
const unidiciGlobalDispatcherSymbol = Symbol.for('undici.globalDispatcher.1');
const agent = globalThis[unidiciGlobalDispatcherSymbol]

This is a response to https://gist.github.com/joepie91/bca2fda868c1e8b2c2caf76af7dfcad3?permalink_comment_id=4767875#gistcomment-4767875

if you are so sure about using 'import' from common js then send some code samples - maybe it will help someone else.

Sure @cybafelo, i can give you 3 example (from easy to more adv)

i'm going to create a basic hello world example that uses express (cjs) and node-fetch (esm-only)

here is what my package.json looks like:

⎋ (escape): U+238B
⇥ (tab): U+21E5
⇪ (caps lock): U+21EA
⇧ (shift): U+21E7
⌃ (control): U+2303
⌥ (option): U+2325
 (Apple): U+F8FF (in some Apple-provided fonts only)
⌘ (command): U+2318

U+2423

# Create Your Own Archive Format with Just 60 Lines of JavaScript

	/**
	* Read a stream into same underlying ArrayBuffer of a fixed size.
	* And yield a new Uint8Array view of the same underlying buffer.
	* @param {ReadableStreamBYOBReader} reader
	* @param {number} chunkSize
	*/
	async function* blockReader(reader, chunkSize) {
	let offset = 0;
	let buffer = new ArrayBuffer(chunkSize)
	let done, view

	import { watch } from 'node:fs/promises'
	import { Worker } from 'node:worker_threads'

	let worker = new Worker('./app.js')

	async function reloadOnChange (dir) {
	const watcher = watch(dir, { recursive: true })
	for await (const change of watcher) {
	if (change.filename.endsWith('.js')) {
	worker.terminate()

	const blob = new Blob(['123'])
	const xhr = new XMLHttpRequest()
	const url = URL.createObjectURL(blob)

	// required if you need to read binary data:
	xhr.overrideMimeType('text/plain; charset=x-user-defined')
	xhr.open('GET', url, false)
	xhr.send()

	const uint8 = Uint8Array.from(xhr.response, c => c.charCodeAt(0))

Jimmy Wärting jimmywarting

# Create Your Own Archive Format with Just 60 Lines of JavaScript

Table of Contents

features

	import { compress, decompress } from 'zlib.js'

	compr = await compress('hhhhheeeej'.repeat(200)).blob()
	blob = await decompress(compr).blob()